Modeling nutrient pollution during a first flood event using HSPF software: Iskar River case study, Bulgaria

Ribarova, Irina; Ninov, Plamen; Cooper, David M.

doi:10.1016/j.ecolmodel.2007.09.022

Cited by 61 publications

(28 citation statements)

References 12 publications

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“…The results also show that forest destruction and the development of dry land farming are causing a higher concentration of nitrates in surface water. In general, the results state that the nitrate loss originates from agricultural lands and rangelands, which can be considered as driving factors of water quality [76]. We conclude that these areas are the main sources of nitrate pollution in Talar watershed, being located in the hotspot of dry land farming, which affects irrigated and forestry areas.…”

Section: Nitrate Simulationsmentioning

confidence: 94%

Assessment of the Spatiotemporal Effects of Land Use Changes on Runoff and Nitrate Loads in the Talar River

Kavian

Mohammadi

Gholami

et al. 2018

Water

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This research surveyed the effects of land use changes on flow nitrate pollution in the Talar River (northern Iran), using Landsat images of 1991 and 2013 and the Soil and Water Assessment Tool (SWAT). The results indicated that forest areas decreased by 14.9% and irrigated crops, dry land farming areas, range lands and residential areas increased by 46.8%, 31.1%, 4.7% and 17.5%, respectively. To calibrate and validate the studied period, the Nash Sutcliffe model efficiency (NSE) and coefficient of determination (R 2 ) were applied, ranging from 0.57 to 0.75 and from 0.62 to 0.76 for flow simulation and 0.84 and 0.63 and 0.75 and 0.83 for nitrate simulation, respectively. The results of land use scenarios indicated that respective water flow and nitrate loads increased by 34. 4% and 42.2% in 1991-2013 and may even increase by 42.3% and 55.9% in the simulated period of 2013-2050 in all sub-basins. It is likely that the main reason for these results was due to the increase in agricultural activities and the decrease in forestry areas. Our findings showed the useful combination of modelling techniques (land cover changes and SWAT) to develop valuable maps able to design correct land management plans and nature-based solutions for water quality of runoff water harvesting systems in the future.

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Section: Nitrate Simulationsmentioning

confidence: 94%

Assessment of the Spatiotemporal Effects of Land Use Changes on Runoff and Nitrate Loads in the Talar River

Kavian

Mohammadi

Gholami

et al. 2018

Water

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“…HSPF has been widely applied in watersheds with diverse geographic characteristics and is commonly used to characterize watershed processes and stream hydrology (Im et al 2003;Ribarova et al 2008) to evaluate the hydrologic and water quality impacts of land-use changes (Hunter and Walton 2008), and to explore effects of climate change (Albek et al 2004). …”

Section: Modeling Approachmentioning

confidence: 99%

Hydrologic impacts of climate and land-use change on Namnam Stream in Koycegiz Watershed, Turkey

Baloch

Ames

Tanık

2014

Int. J. Environ. Sci. Technol.

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The effects of land-use and climate change on the hydrologic regime of the Namnam Stream in the Koycegiz Watershed, Turkey, are quantified using a hydrologic simulation modeling system under a number of real and potential scenarios. The study shows that urbanization has induced severe modification in the magnitude, frequency, and duration of extreme flow conditions. The mean annual flows increased by 5-60 % due to 0.1-50 % increase in impervious surfaces. Additionally, confounding climate change impacts include an increase in low flow pulses of 2 % when considering a decrease in precipitation by 20 % and a decrease in low flow pulses of 12 % when considering a 20 % increase in precipitation. The watershed system under investigation is significantly more sensitive to climate change scenarios involving additional inputs of precipitation compared with scenarios involving reductions in precipitation and that these changes are compounded in the presence of major land-use change. These results suggest the need for erosion control, nutrient management and habitat conservation in light of rapid urbanization, as often typified in developing countries, and potential climate change to conserve essential watershed functions.

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“…Details are available at http://www.epa.gov/ceampubl/swater/hspf/index.htm. By supporting conventional and toxic organic pollutants from both point sources and diffuse sources, HSPF is one of few comprehensive watershed hydrology and water quality models that allow the integrated simulation of land and soil contaminant runoff processes with instream hydraulic, water temperature, sediment transport, nutrients, and sediment-chemical interactions (Gallagher and Doherty, 2007;Ribarova et al, 2008).…”

Section: Hydrological Simulation Program -Fortran Was Developed By Usmentioning

confidence: 99%

A Review of Modelling Tools for Implementation of the EU Water Framework Directive in Handling Diffuse Water Pollution

Yang

Wang

2009

Water Resour Manage

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A numerical catchment-scale model capable of simulating diffuse water pollution is necessary in sustainable environmental management for better implementation of the EU Water Framework Directive. This paper provides critical reviews of most popular and free models for diffuse water modelling, with detailed sources and application potential. Based upon these reviews, further work of selecting and testing the HSPF model was carried out, with a case study in the Upper Bann Catchment, NorthernIreland. The calibrated and validated HSPF model can well represent the characteristics of surface water quantity and quality. Climate change scenario evaluation in five years showed that when the annual mean temperature increase 3°C the mean yearly total runoff volume will decrease by 11.1% and the mean daily river flow 11.4%. If 20% crop and pasture land is converted into forest land in the study area, the mean river concentration of nitrate, nitrite, NH 4 and PO 4 in five years will decrease by 19.4%, 33.3%, 31.3% and 31.3% respectively. When applying filter strip method in 80% crop and pasture land in the area, the reduction of the mean concentration of nitrate, nitrite, NH 4 and PO 4 in five years will be 15.3%, 33.3%, 31.3%, and 5.6% respectively. This Software availabilitySoftware name/source: all reviewed software are mentioned in the text.

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Modeling nutrient pollution during a first flood event using HSPF software: Iskar River case study, Bulgaria

Cited by 61 publications

References 12 publications

Assessment of the Spatiotemporal Effects of Land Use Changes on Runoff and Nitrate Loads in the Talar River

Assessment of the Spatiotemporal Effects of Land Use Changes on Runoff and Nitrate Loads in the Talar River

Hydrologic impacts of climate and land-use change on Namnam Stream in Koycegiz Watershed, Turkey

A Review of Modelling Tools for Implementation of the EU Water Framework Directive in Handling Diffuse Water Pollution

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